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17个最短路径源代码。代码效率高

COPYRIGHT C 1994 by Cherkassky, Goldberg, and Radzik
Permission to use free of charge is granted provided
that proper acknowledgments are given.

This software comes with NO WARRANTY, expressed or implied. By way 
of example, but not limitation, we make no representations of warranties
of merchantability or fitness for any particular purpose or that the use
of the software components or documentation will not infringe any patents,
copyrights, trademarks, or other rights.